/*
 * Copyright 2012-2014 Sergey Ignatov
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.intellij.erlang.copyright;

import com.intellij.openapi.module.Module;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.psi.PsiComment;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiWhiteSpace;
import com.maddyhome.idea.copyright.CopyrightProfile;
import com.maddyhome.idea.copyright.psi.UpdatePsiFileCopyright;
import org.intellij.erlang.psi.ErlangFile;

public class UpdateErlangFileCopyright extends UpdatePsiFileCopyright {

  public UpdateErlangFileCopyright(Project project, Module module, VirtualFile root, CopyrightProfile options) {
    super(project, module, root, options);
  }

  @Override
  protected boolean accept() {
    return getFile() instanceof ErlangFile;
  }

  protected void scanFile() {
    PsiElement first = getFile().getFirstChild();
    PsiElement last = first;
    PsiElement next = first;
    while (next != null) {
      if (next instanceof PsiComment || next instanceof PsiWhiteSpace) {
        next = getNextSibling(next);
      }
      else {
        break;
      }
      last = next;
    }

    if (first != null) {
      checkComments(first, last, true);
    }
    else {
      checkComments(null, null, true);
    }
  }
}